[ZWeb] killing apache softly

[ethan mindlace fremen]

note:

after you've changed your configuration file, kill apache with 

kill -USR1 pid

which will:
http://www.apache.org/docs/stopping.html
The USR1 signal causes the parent process to advise the children to exit
after their current request (or to exit immediately if they're not
serving anything). The
parent re-reads its configuration files and re-opens its log files. As
each child dies off the parent replaces it with a child from the new
generation of the
configuration, which begins serving new requests immediately. 

The status module will also use a G to indicate those children which are
still serving requests started before the graceful restart was given. 

-- 
«living on earth and in space are the same class of problem.
 In one, the environment is harshly inimical to humans: 
 in the other, the inverse is true.»
.@mindlace.net